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Finding the Fourth Proportional to 15,943.65, 23,889.55 and 9,375.81

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Solution

The fourth proportional to 15,943.65, 23,889.55 and 9,375.81 is: 14,048.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,943.65 : 23,889.55 = 9,375.81 : x
  2. Step 2: Convert to fraction form
    15,943.65/23,889.55 = 9,375.81/x
  3. Step 3: Cross multiply
    15,943.65x = 23,889.55 × 9,375.81
  4. Step 4: Simplify right side
    15,943.65x = 223,983,881.79
  5. Step 5: Solve for x
    x = 223,983,881.79/15,943.65
  6. Step 6: Final answer
    x = 14,048.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.